Question detail
What does activation energy represent in a chemical reaction?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Rate of reaction
Question
- A. The energy released duringa reaction
- B. The minimum energy needed for particles to react
- C. The total energy of the reactants
- D. The energy needed to break bonds
Answer
The minimum energy needed for particles to react
Explanation
The correct answer is The minimum energy needed for particles to react. This answer directly addresses the question: What does activation energy represent in a chemical reaction? It matches the approved Chemistry 8462 learning objective and the linked subtopic. The other options are incorrect because they either change the rate, catalyst, reversible reaction, equilibrium, or graph context, or they do not answer the exact point being tested.
Common mistake
Misunderstanding Collision Energy
Students often think that all collisions between particles result in a reaction, regardless of their energy.
Emphasize that only collisions with sufficient energy can lead to a reaction, and explain the concept of activation energy.
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